Sash-lock.



No. 705,947. Patented Aug. l2, |902.

N. M. HuTToN.

SASH LUCK.

(Appl camo led Hay 5, 1902 (No Modal.)

UNITED STATES PATENT OFFICE.

NOAII M. IIUTTON, OF CHICAGO, ILLINOIS.

MSH-LOCK.

SPECIFICATION forming part of Letters Patent No. 706,947, dated .August12, 1902.

Application filed May 5,1902.

T0 @ZZ whom, it www con/cern:

Be it known that I, NOAH M. HUTTON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Sash-Locks; and I dodeclare the following to be a full, clear, and exact description of theinvention, such Yas will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to new and useful improvements in burglar-proofVentilating sash-locks; and it consists in the provision of meanswhereby the sash of a Window may be held down from the top for thepurpose of Ventilating and said sash held in such position by means of alock which holds the two sash together to prevent the same from rattlingand making it impossible to close the sash without iirst releasing'thetwo sash and disengaging the locking-lever from the rackbar carried byone of the window-sashes.

The invention consists,further, in various details of construction andcombinations of parts, as will be hereinafter fully described and thenspecifically defined in the appended claims.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which drawings- Figure lis a side elevationshowing my improved burglar-proof lock shown in'connection with the sashof a window. Fig. 2 is a cross-sectional view through the upperWindow-sash and rack-bar secured thereto and at a location above thesash-lock. Fig. 3 is a longitudinal section through the locking-1ever,and Fig. iis a detail view of the lockinglever on an enlarged scale.

Reference now being had to the details of the drawings by letter, Adesignates the lower sash of a window, and B the upper sash, mounted ina suitable frame, and to the inner face of one of the side rails of theupper sash is mounted a rack-bar C,which extends, preferably, six inchesor anysuitable length from the meeting-rail toward the upper end of thesash, with the rack-teeth disposed along the Serial No. 106,050. (Nomodel.)

`inner edge .adjacent to the Amargin of the plate is a locking-lever F,having a curved hooked end F', which is adapted to engage over the rearedge of the rack-bar when said locking-lever E is in a locking relationwith the vrack-teeth. Said lever F has a recess f formed therein whichis engaged by said projecting lug, and owing to the peculiar shape ofthe wall of the recess and of the outline of said lug or projection asthe locking-lever E is turned on its pivot said lever F is over theouter inclined edge of the rack-bar, and when the lever E is thrown inthe opposite direction or out of engagement with the teeth of therack-bar said lever F is thrown out of engagement with the opposite oroutside edge of the rack-bar.

In'order to hold the lever E in alocked position, I provide aspring-actuated button K, having a knob K at one end and a spring Linterposed between the bottom wall of the recess in the lever E and theshouldered portion of said button, whereby the latter is normally heldin a recess in the upper face of the plate D.

From the foregoing it will be noted that by the provision of a lockingmeans made in accordance with my invention the upper sash of a windowmay be held open a short dis tance sufficiently toallow for circulationof air, and by means of the clamping action of thelever F, whichsecurely grips the rackbar, the two sashes are held together andprevented'from rattling. j

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

l. A burglar-proof lock for window-sashes, comprising in combinationwith the rack-bar secured to the sash, a swiveled locking-lever carriedby the meeting-rail of the sash, and means for gripping the oppositeedges of the IOO '- an inclined or cam-outlined Wall adapted tovvreceive one of the teeth of the rack-bar, and

means actuated by said lever for gripping the opposite edge of therack-bar, as set forth.

3. A sash-lock, comprising in combination with the rack-bar secured tothe sash of a Window, a swiveled locking-lever having a recess, theWallof which isinclined and adapt- .ed to receive one of the teeth ofsaid rackbar, and a second pivotal lever actuated by the first lever andadapted to grip the outer edge of the rack-bar, as set forth.

4. A sash-lock, comprising in combination with a rack-bar secured to thel:sash of a Window, a swiveled levez1 having a recess adapted to receiveone of the teeth of said rackbar, a lug projecting fromsaid lever, apivotal hooked lever having a recess engaged by saidprojection andadapted to be rotated as said pivotal lever is swung upon its pivot, as

set forth.

In testimony whereof I ailix my signature in presence of two Witnesses.

NOAH M. I-IUTTON.

Witnesses: f

GEO. L. SPATE, L. S. LAKIN.v

